Technical Information; Leds; Block Diagram - One Stop Systems Max Express OSS-KIT-EXP-4500 User Manual

4. Technical Information

4.a. LEDs
Power and
Cable present

LEDs

4.b. Block Diagram
One Stop Systems, Inc.
Rev. A
PCIe Lane Status LEDs
Cable present
LED
Clock*
x4 PCIe Tx
x4 PCIe Rx
CPRSNT#
Cable Present/ Pwr
Downstream
x4 PCI Express
Cable Connector
*Clock direction shown in Host configuration
LED #
Power LED
LVPECL
Clock Buffer
PCIe Signal
Redriver
x4 PCIe Rx
PCIe Signal
Redriver
LEDs
LEDs
PCIe lane
status
CR2 CR4 CR6
CR3 CR5 CR7
Function
CR2 Tx pair, Lane 0 (from card edge)
CR3 Rx pair, Lane 0 (from cable)
CR4 Tx pair, Lane 1 (from card edge)
CR5 Rx pair, Lane 1 (from cable)
CR6 Tx pair, Lane 2 (from card edge)
CR7 Rx pair, Lane 3 (from cable)
CR8 Tx pair, Lane 3 (from card edge)
CR9 Rx pair, Lane 2 (from cable)
Clock*
x4 PCIe Tx
+3.3v
Upstream
x4 PCI Express
Card Edge Connector
OSS-KIT-EXP-4500
Page 7
CR8
CR9